If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. Some of country music ’s biggest stars are getting together for a one-night concert special, CMA Fest Presented by SoFi . Riley Green and Good Morning America ’s Lara Spencer will host the prime-time three-hour event on ABC. At a Glance: How to Watch CMA Fest Online Stream : DirecTV , YouTube TV , Fubo , Sling , Hulu + Live TV , TV channel : ABC Date,